posix_fadvise.c 902 B

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  1. /* vi: set sw=4 ts=4: */
  2. /*
  3. * posix_fadvise() for uClibc
  4. * http://www.opengroup.org/onlinepubs/009695399/functions/posix_fadvise.html
  5. *
  6. * Copyright (C) 2000-2005 by Erik Andersen <andersen@codepoet.org>
  7. *
  8. * GNU Library General Public License (LGPL) version 2 or later.
  9. */
  10. #include "syscalls.h"
  11. #include <fcntl.h>
  12. #ifdef __NR_fadvise64
  13. #define __NR___syscall_fadvise64 __NR_fadvise64
  14. _syscall4(int, __syscall_fadvise64, int, fd, off_t, offset,
  15. off_t, len, int, advice);
  16. int __libc_posix_fadvise(int fd, off_t offset, off_t len, int advice)
  17. {
  18. return (__syscall_fadvise64(fd, offset, len, advice));
  19. }
  20. weak_alias(__libc_posix_fadvise, posix_fadvise);
  21. #if defined __UCLIBC_HAS_LFS__ && !defined __NR_fadvise64_64
  22. weak_alias(__libc_posix_fadvise, posix_fadvise64);
  23. #endif
  24. #else
  25. int posix_fadvise(int fd, off_t offset, off_t len, int advice)
  26. {
  27. __set_errno(ENOSYS);
  28. return -1;
  29. }
  30. #endif